EFFECT OF DIFFERENT DZYALOSHINSKII-MORIYA INTERACTIONS ON ENTANGLEMENT IN THE HEISENBERG XYZ CHAIN

被引：10
|
作者：
Li, Da-Chuang
Cao, Zhuo-Liang [1 ]
机构：
[1] Hefei Teachers Coll, Dept Phys, Hefei 230061, Peoples R China
来源：
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2009年 / 7卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Thermal entanglement; Heisenberg XYZ model; DM interaction; QUANTUM DOTS; DECOHERENCE; COMPUTATION; QUBITS; STATE;
D O I：
10.1142/S0219749909005146
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In this paper, we study the thermal entanglement in a two-qubit Heisenberg XYZ system with different Dzyaloshinskii-Moriya (DM) couplings. We show that different DM coupling parameters have different influences on the entanglement and the critical temperature. In addition, we find that when J(i) (i-component spin coupling interaction) is the largest spin coupling coefficient, D-i (i-component DM interaction) is the most efficient DM control parameter, which can be obtained by adjusting the direction of DM interaction.
引用
收藏
页码：547 / 557
页数：11
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